<template>
  <div>
    <li :class="isEnter?'active':''"
    @mouseenter="mouseHandel('enter')"
    @mouseleave="mouseHandel('leave')"
    >
        
          <label>
            <input type="checkbox" :checked='done' @click="checkedNewHandle(id)"/>
            <span>{{thing}}</span>
          </label>
          <button class="btn btn-danger" @click="deleteItemHandle(id)">删除</button>
        </li>
       
  </div>
</template>

<script>
export default {
name:'Item',
props:['id','thing','done'],
data(){
    return{
        isEnter:false
    }
},
methods:{
    mouseHandel(type){
        this.isEnter=type==='enter'
    },
    checkedNewHandle(id){
        // console.log(this);
        this.$emit('checked',id)
    },
    deleteItemHandle(id){
        this.$emit('delete',id)
    }
}
}

</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}
li.active{
    background: #ccc;
}
li.active button{
    display: block;
}
</style>